Periodically driven (Floquet) systems have attracted perennial interest owing
to their fascinating dynamical, topological and transport properties
(see Refs. [1]}, [2]}, [3]}, [4]}, [5]}, [6]} for reviews).
Theoretical classifications of Floquet matter with nontrivial topology
have been achieved for both free [7]}, [8]}, [9]}
and interacting [10]}, [11]}, [12]} systems. Experimental
observations of Floquet phases have also been made in cold atoms [13]}, [14]}, [15]},
photonics [16]}, [17]}, [18]} and solid state materials
[19]}, [20]}, [21]}, boosting the developments of new
ideas in ultrafast electronics [4]} and topological quantum
computing [23]}, [24]}, [25]}.
